题目内容
Richard was called in by the police to answer questions _______ the disappearance of Thomas Ripley, whose relatives were so ______ his present situation.
| A.concerning; concerned about | B.concerned; worrying about |
| C.with regards to; concerned | D.regarding; concerning about |
A
第一空考查concerning 为介词,关于,第二空短语:be concerned about 对什么关心,所以选A。
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